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Terahertz imaging: applications and perspectives
Applied Optics, 2010Terahertz (THz) spectroscopy, and especially THz imaging, holds large potential in the field of nondestructive, contact-free testing. The ongoing advances in the development of THz systems, as well as the appearance of the first related commercial products, indicate that large-scale market introduction of THz systems is rapidly approaching.
Christian, Jansen +9 more
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Inexpensive detector for terahertz imaging
Applied Optics, 2007Glow discharge plasma, derived from direct-current gas breakdown, is investigated in order to realize an inexpensive terahertz (THz) room-temperature detector. Preliminary results for THz radiation show that glow discharge indicator lamps as room-temperature detectors yield good responsivity and noise-equivalent power.
A, Abramovich +3 more
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Chemical & Engineering News Archive, 2015
The slice of the electromagnetic spectrum sandwiched between the infrared and microwave regions used to be known as the “terahertz gap” because scientists lacked the tools to access it. Not anymore. “In the last several years, terahertz spectroscopy has really found its footing,” says Yale University’s Charles A.
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The slice of the electromagnetic spectrum sandwiched between the infrared and microwave regions used to be known as the “terahertz gap” because scientists lacked the tools to access it. Not anymore. “In the last several years, terahertz spectroscopy has really found its footing,” says Yale University’s Charles A.
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2012
There is significant interest in the study of terahertz spectroscopy and imaging particularly dealing with the interaction of terahertz radiation with biological molecules, cells, and tissues (Smye et al. Physics in Medicine and Biology, 46(9):R101–R112, 2001).
Xiaoxia Yin +2 more
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There is significant interest in the study of terahertz spectroscopy and imaging particularly dealing with the interaction of terahertz radiation with biological molecules, cells, and tissues (Smye et al. Physics in Medicine and Biology, 46(9):R101–R112, 2001).
Xiaoxia Yin +2 more
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Polarization information for terahertz imaging
2008 33rd International Conference on Infrared, Millimeter and Terahertz Waves, 2008A method to analyze the change in the polarization state of a terahertz (THz) wave by using a typical electro-optic sampling setup with a ?110? zinc-blende crystal as a sensor is presented. To illustrate knowledge of the polarization of the THz pulse, the THz detection function in a ZnTe crystal is presented.
Ranxi, Zhang +3 more
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Fast frequency-resolved terahertz imaging
Review of Scientific Instruments, 2011We propose a fast, frequency-resolved, real-time, terahertz imaging method. With our method, images at two specific terahertz frequencies can be acquired in 1 min. Three kinds of drugs (L-histidine, maltose, and CBZ3), which have absorption peaks in the terahertz region, were distinguished in 3 min by using our method.
Takashi, Yasuda +5 more
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2012
Advances in THz technology have propelled terahertz (THz) radiation to be an important part of the electromagnetic spectroscopic region. The THz frequency range excites large amplitude vibrational modes of molecules and allows researchers to probe weak interactions (Wallace et al. Faraday Discussions 126:255–263, 2004a; Faraday Discussions, 126:255–263,
Xiaoxia Yin +2 more
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Advances in THz technology have propelled terahertz (THz) radiation to be an important part of the electromagnetic spectroscopic region. The THz frequency range excites large amplitude vibrational modes of molecules and allows researchers to probe weak interactions (Wallace et al. Faraday Discussions 126:255–263, 2004a; Faraday Discussions, 126:255–263,
Xiaoxia Yin +2 more
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Terahertz Imaging of Biological Tissues
2011A reflective THz imaging system sensitive to small variations in water concentrations has been developed. Biological tissues such as skin, eyes and teeth were imaged to ascertain the systems response to tissue hydration. Difference in water concentrations translated to contrast in the THz images.
Priyamvada, Tewari +10 more
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Three-dimensional terahertz wave imaging
Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2003Pulsed terahertz (THz) wave sensing and imaging is a coherent measurement technology. Like radar, based on the phase and amplitude of the THz pulse at each frequency, THz waves provide temporal and spectroscopic information that allows us to develop various three-dimensional (3D) terahertz tomographic imaging modalities.
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Potenziale der bildgebenden Terahertz-Spektroskopie (Potentials Terahertz Imaging)
tm - Technisches Messen, 2008Terahertz-Systeme erfreuen sich im Bereich der zerstörungsfreien Prüfung wachsenden Interesses. Sie kombinieren die Vorzüge eines bildgebenden und berührungslosen Verfahrens mit einer großen Eindringtiefe und verzichten auf ionisierende Strahlung. Je nach verwendeter THz-Quelle stehen unterschiedliche Leistungsmerkmale im Vordergrund.
Christian Jördens +4 more
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